Clutch mechanism.



N0. 825,542. PATENTS!) JULY 10, 1906. W. F. JACOBS.

OLUTGH MECHANISM.

.APPLIU'A TIOH FILED 0013.3. 1905.

2 BREWER-811E211.

PATBNTED JULY 10, 1906.

W. F. JACOBS CLUTCH MECHANISM.

APPLICATION mum 06w. 6. 1905.

2 BEBETSSBEBT 2.

(at no!!! llfi'n: 00., Iull l'llmlv. a.

UNi-rnn STATES PATENT OFFICE. WILLIAM F. Jricons o gj wii, ILLINOIS. OLUTGH 'mscusmsm.

Specification of Letters Patent. I

Patented July 10, 1-906.

Lnglioation filed Qcteber 6, i905 Barbi No. 281,668-

To all whom it may concern:

Be it known that 1, WILLIAM F. JAGOBs, a citizen of the United States, residing at Ottswc, in the county of Lasslle end trite of lllincis, have invented certain new and useful Improvements in Clutch Mechanism; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawis, and to the numerals of referencev marks thereon, which form a pert of this specification This invention relates to improvements in clutches for intermittently connecting a continuously-relative driving-shaft with a shaft which is to be driven intermittently and corn struclsed to disconnect the driven shaft from the driving-shaft at other times.

Th mechanism herein shown has been designed especially for interndttently rotsting the seed-Shaft oi e corn-planterfrom the cover-wheel axle or other continuously-rotating part of the planter in such manner that the seed-shaft is driven at regular intervals, between which intervals it remains stationery. Such use of my im roved clutch is full illustrated in my pen ing ElgPllCailDii for nited States Letters Patent, erisi No 262,212,fi1edMey25,1905.

The invention consists in the matters here inaftier sci; forth, and more particularly pointed out in the ap ended claims.

As shown in the rcwings, Figure '1' is a. partial plan view of a corn-planter provided with my improved clutch mochanisrn'fcriii;

termittently rotating the seed-shaft from the main on line 2 Fig. 3 is an enlarged detail of the main operative aris of the clutch. .F' 4 is a, face view of one of the clutch mam ers and .a nortien cf the cam 0 emfigg 'iag gg'garg fig the clutch members. Figs. 6, 7, and 8 are details of the componeat parts of the clutch mechanism.

As shown in the drawings 1 designates one of the cover-wheels of the planter, 2 the axle thereof, and 3 the seed-shaft driven from the axle and opemtively connected wiih the seed-plate at the bottom oi the seedbog (designated as a whole by 4; as more clearly shown in my aforessid'epplicetien.

5 5 designate the" side members of the mainframe, end 6 6 the bent and rear m ns bers of the mum and seedbox-su porting frame, to the forward member of w. ch the forward, end of the 11& i11 frame members 5- 2 is a vertical section tekefnf 2. of ig. 1.

are pivoted b and seedboxame supports outside the eedboxes the usual check-row attachments, e ignated as a whole by 8,) which latter 0 cr te n a familiar manner the rocking check-row shaft 9. The said check-row shaft carries a part to be more fully hereinafter described, which 0 crates to control the action of the'clutch mec anism.

The seed-shaft 3 is rotated from the axle 2 throuli the medium of a s rockei belt 1Q, traine d' about a. sprocket eel 11, or the axle and esprocket-pinion 12 on the seedshaft. The sprocket-wheel 12 is attached to or made part of a sleeve 13, which is capable ofrotgiiaing and sliding endwise on the seedshafl; 3 send constitutes one member of the clutch. The sleeve 13 is provided at its in ner' end wish a series of ratchet-shaped clutch-teeth 14, concentric with the axis of Z the seed sheft, adapted to engage like clutchtcebhfifi on a sleeve 16, which is fixed con cenfiricell to said seed-shaft. The sleeve 13 which sli es longitudinally of the seed-shaft 3 as aforesaid, is normally forced toward the 's eeve 16 in a manner to bring the clutchteetltrl and 15 into engagement by means of a spiral erpansive spring 17, surrounding the seed-she t and interposed between the sleeve 13 and a collar 18, fixed to the seedv shaft in any suitable manner.

Surrounding the sleeve 13 is seem-sleeve 179, provided with cam rojscticns' fl cne fscecf each of which is 0 ll lie so the axis of the sleeve and the other pars ellwith said axis, end's'sid'celn'llrojectiens engage similsrl shaged'fjcemnrojections 21, carried by tile sleeve 16 end surrounding the clutch-teeth 15 of said sleeve 16. 7 As herein shown, the cem projeclqions encircle the clutch-teeth, but aless number of such cam projections me be pro aded, 1f des1red The cam projec ions ere inclined 1n the same manner as are the clutchteetla, sndwhcn, therefore,the ring 19 end sleeve 1 6' are re eased relatively to each other the mfillllefi fifim projections ectjrc'fere action of and there!) separate the clutch members and discomice the shaft afiom thc ower. 1711c cam projecprojectiens are not freed from each other 'when thc clutch-teeth are separated or clear of each other; so that the cam pro ec ions on sleeve lscc ifremifi sleseifi ageless em ticsseiskesiseves, 9 and 16 are so disposed, relenvsiy'io the clutchdeefll that the cars the sleeve 19 do not slip past their oompanion pivot-pins 7. The runner IIO projections. The shaft 3 in the organization shown rotates once for each intermittent rotary movement of the seedlatos, and the clutch members are actuated to disconnect the shaft 3 from the axle'at the termination of each rotation of the seed-shaft by a trip pin device carried by the check-row-actuated roc -shaft 9. Said clutch-tripping mechanism is made as follows: The cam-ring 19 is provided with a radial arm 22 which rotates 1n a path normally occupied by a trippingarm 23, carried by a bracket 24, which is fixed to and extends rearwardly from the rock-shaft 9. The said tripping-arm 23 stands in the path of the arm 22 except at such times as when the shaft 9 is rocked backwardly by the check-row mechanism, and at this time the tripping-arm is swung below the path of the cam-actuating arm. When the cam-actuating arm 22 during its rotary movement strikes the tripping-arm 23 the rotation of the clutchsleeve 19 is arrested, and owing to the continued rotation of the sleeve 16 and its shaft 3 the cam projections o erate to back the sleeve 19 away from the s eeve 16 until the clutch-teeth are separated, at which time the shaft 3 discontinues its rotation, while the sleeve 13 rotates loosely thereon. When applied to a cornlanter, as herein shown, the arrest of the shat 3 also arrests the rotation of the seed-plate geared thereto. The parts are held in this position until the rock-shaft 9 is again rocked rearwardly, whereupon the tripping-arm is swung out of the path of the cam-actuatin arm 22, and the spring 17 acts to force the c utch elements into engagement to again transmit rotation of the axle or driving-shaft to the driven or seed shaft 3, which latter rotates continuously until the cam-actuating arm again strikes the tripping-arm.

The rock-shaft 9 is held in its normal position, when free from the action of the checkrow mechanism, by means of a spring 25, attached at one end to an arm 26, mounted on the rearmost member 6 of the seedbox and runner-frame and at its other end to a hook 27, depending from the rock-shaft 9, said sprin acting to hold the rock-shaft against a suita le stop (not shown) with the trip-arm 23 thereof in osition to engage the actuating-arm 22. fn order to avoid jars or shocks between the tripping-afm and the cam-actu ating arm, the latter arm carries a roller 28 between lugs 29 29 on said arm, and the trippingarm 23 1s provided on one side with a forwardly-extending cam-shaped member 30, which engages said roller.

In order to prevent the momentum of the parts from disengaging the cam-teeth after the required se aration of the clutch-teeth in case wear 0 the cam projections should permit such separation, a suitable sto mechanism is employed which consists in t e resent' instance of two ribs 31 32, forme respectiv ly, on the sleeve 19 and the sleeve 16, nd said ribs occup a recess 33, formed within a rin 34, which lbosely encircles the abutting en s of the cam projections. Said ribs 531 and 32 normallyoccupy the position Shown in Fig. 4 at the ends of the re" and when the clutch-sleev arrested t ribs 31 32 are brought together by relative rotation of the parts and prevent such movement as will entirely separate the cam projections.

I claim as m invention 1. In a clutc i mechanism, a rotative shaft, two clutch-sleeves, meshin clutch-teeth on the adjacent ends of said s eeves, one sleeve being fixed to the shaft and the other rotative thereon and movable towardand from the fixed sleeve, an actuating-arm for said movable clutch-sleeve, a spring pressing the movable clutch-sleeVe into mesh with the fixed sleeve, an annular cam surrounding said clutch-sleeves for separating the same, combined with a tri ping-arm that normally stands in the path oi said cam-actuating arm, and means for moving said tripping-arm out of the path of said actuating-arm to permit operative engagement of the clutch-sleeves under the action of said spring.

2. In a clutch mechanism, a rotative shaft, two clutch-sleeves, meshin clutch-teeth on the adjacent ends of said s eeves, one sleeve 95 being fixed to the shaft and the other rotative thereon and movable toward and from the fixed sleeve, a spring for pressing the movable clutch-sleeve into mesh with the fixed sleeve, a cam rotative with said clutchno sleeves for spreading said sleeves apart, a camactuating arm, a tripping-arm located normally in the path of rotation of the cam-ac tuating arm and means for moving said tripping-arm out of the path of the cam-actu- 105 ating arm to ermit operative engagement of said clutch-sieeves under the action of said 3 Pin.

3. Tn a clutch mechanism, a rotative shaft,

.two clutch-sleeves, meshin clutch-teeth on no the adjacent ends of said s eeves, one sleeve being fixed to the shaft and the other rotative thereon and movable toward and from the fixed sleeve, an actuating-arm for the movable h s eve, a gear rotative with the movableclutch-sleeve, a springfor proseing the movable clutch-sleeve into mesh with the fixed sleeve, an annular cam-ring surroundin one of said clutch-sleeves for operating t e same, combined with a trip pm -arm that stands normally 1n the path of sai actuating-arm, and means for moving said tripping-arm out of the path of said actuating-arm to ermit engagement of the clutch-sleeve un er the action of said spring. 12 5 4. In a clutch mechanism, two rotat ve clutch-sleeves movable one toward and from the other and provided on their ad acent ends with interlocking clutch-teeth, a gear carried by the movable clutch-sleeve. a 13 spring pressing the movable clutoh sleeve toward the other clutch-sleeve, a earn-sleeve surrounding and rotating with the movable clutch-sleeve and provided with oblique oain rojeotions, similar cam pro'eotions carried ii the other elutel1-sleeve or engagement with the proj eetions of the oai'nsleeve, a camaotuating arm extending radially from said cam-sleeve, combined with a tripping-arm looated normally in the ath of said camaetuatin arm and operating by engagement with sai' cam-actuating arm to spread the clutch-sleeves apart, and means for moving said tripping-arm out of the path of said camaotuating arm.

5. In a clutch mechanism, two ,rotative clutch-sleeves movable one toward and from the other and provided on their adjacent ends with clutch-teeth, a spring for normally pressing one of the clutch-sleeves toward the other, the movable clutch-sleeve being provided with a gear, a sleeve surrounding one of the clutch-sleeves and rotative therewith and provided with inclined cam proieotions, cam pro'eotions carried by the other clutchsleeve a apted for engagement with the pro jeotion oi the earn-sleeve, a radial arm carried by the cam-sleeve, a rooloshaft and a tripping-arm carried by the roeksha'ft and located normally in the path of rotation of said cam-sleeve arm, for the purpose set forth.

6. In a clutch mechanism, a rotative shaft, two clutch-sleeves, one fixed to the shaft and the other movable toward and from the fixed sleeve and rotative on the shaft, said sleeves bein provided on their adjacent ends with olnto -teeth, a gear carried by the movable clutch-sleeve, a spring for throwing the movable clutch-sleeve into engagement with the fixed clutch-sleeve, a carnring rotativel surrounding the clutch-sleeves and provide with oblique cam proj actions, similar oam projections carried by one of the clutch-sleeves ada ted for engagement by the projections of t e cam-sleeve, an arm extending radially from said earn-sleeve, a tripping-arm losated normaliy in the path of the arm of said cam-sleeve, and means for rocking said tripping-arm out of the path of the earn-sleeve arm to permit engagement of the clutchsleeves under the action of said springs.

7. In a clutch mechanism, a shaft, two clutch-sleeves, one fixed to the shaft and the other movable toward and from the fixed clutch-sleeve and rotative on the shalt, said sleeves being provided on their adj aoent ends with obli ue clutch-teeth, a gear carried by said move is clutch-sleeve, means for throwing the movable clutch-sleeve into engage- -ment with the fixed clutch-sleeve, a camsurrounding the movable clutch-sleeve an provided with oblique oam pro'eotions similar cam projections carried by t o fixed sleeve adapted to engage the projections of the eainleeve, an arm extending radially fi' gfil said earn-sleeve, and a tripping-arm lotreated normally in the path of t e radial arm adapted to be rocked out of said path, said eam-sleeve arm carrying an antifriotionroller.

8. In a clutch meehanismthe combination with a shaft, of a clutch-sleeve fixed thereon, a second clutch-sleeve movable toward and away from the first clutch-sleeve and rotative on said shaft, said sleeves being provided on their adjacent ends with intermeshing clutch-teeth, a gear carried by said movable clutch-sleeve, a cam-ring surrounding said movable clutch-sleeve and provided with cam projections, oomplemental cam projeo tions carried by the fixed sleeve adapted for engagement with the proj actions of the camsleeve in a manner to force the movable clutch-sleeve away from the fixed clutohsleeve when rotation of said cam-sleeve is ar rested, and means for intermittently arresting the rotation of said cam-sleeve for the purpose set forth.

9. In a clutch meehanism,the combination with a shaft, of a clutch-sleeve fixed thereon, a clutch-sleeve movable toward and away from the first clutch-sleeve and rotative on said shaft and provided with clutch-teeth, ooinplemental clutch-teeth on the fixed sleeve engaging the olutch-teethoi the movable sleeve, a gear carried by said movable clutch-sleeve, a earn-sleeve surrrounding said movable clutch-sleeve and provided with earn projections, complemented earn projections on the fixed clutch-sleeve engaged by the projections of the oamsleeve in a mannor to move the movable clutch-sleeve away from the fixed clutch-sleeve when rotation of said earn-sleeve is arrested, means for intermittently. arresting the rotation of said camsleeve, and means for limiting the rotation of said cam-sleeve to avoid separation of the cam projections thereof from the complemental earn projections of the fixed clutchsleeve.

10. In a olutoh mechanism, the combination with a shaft, of a clutch-sleeve fixed thereon, a clutch-sleeve movable toward and away from the first clutch-sleeve and rotative on said shaft and provided with clutchteeth, oomplemental clutch-teeth on the fixed sleeve engaging the clutch-teeth of the movable sleeve, a gear carried by said movable olnteh-sleeve, a cam-sleeve surrounding said movable clutch-sleeve and rovided with cam projections, eomplementaearn projections on the fixed clutch-sleeve engaged by the projections of the cam-sleeve in a mannor to move the movable clutch-sleeve away from the fixed clutch-sleeve when rotation of said cam-sleeve is arrested, means for intermittently arresting the rotation of said cam-- sleeve, and means preventing separation of said earn projections, comprising a ring surrounding the interlocking parts of the cam of two Witnesses, this 28th day of September, projectionsi ang providgd at 01g: sidedwgth g A. D. 1905. recess, an n. s oarrie one sai Xe sleeve and the other by said earn-iing, and lo- WILLIAM JACOBS 5 cated in said recess. l Witnesses:

In testimony that I claim the foregoing as M. B. SHAW, my invention I affix my signature, in presence B. S. JORDAN. 

